openlayers

<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/graticule.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../prettify.css" /> <link rel="stylesheet" href="../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../index.html">all files</a> / <a href="index.html">ol/</a> graticule.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 82.76% Statements 168/203 </div> <div class='fl pad1y space-right2'> 54.55% Branches 24/44 </div> <div class='fl pad1y space-right2'> 84.62% Functions 11/13 </div> <div class='fl pad1y space-right2'> 82.76% Lines 168/203 </div> </div> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540</td><td class="line-coverage quiet">1×   1× 1× 1× 1× 1× 1× 1× 1× 1×                   1×   4×           4×           4×           4×           4×           4×           4×           4×           4×           4×           4×           4×             4× 4×             4×           4×           4×             4×           4×           4×   4×                 1×                   1×                           1×   13×   13× 13×   13×                           1×   7×   7× 3×   7×                     1×     1× 1×         1× 1× 1× 1× 1×   1×             1×   1× 1× 1× 1×       1× 1×   1×   1× 1× 6× 6×     1×   1× 1× 6× 6×     1×       1× 1×   1×   1× 1× 3× 3×     1×   1× 1× 3× 3×     1×                   1× 1× 1× 1× 1× 1×   1×   1× 1× 4× 4× 4× 4× 4× 4× 4× 4× 4× 1×   3×   1×                 1×                           1×   13×   13×   13×   13×   13×   13× 13×                 1× 1×                         1×   7×   7×   7×   7×   7×   7× 7×                 1× 1×               1×                                                                                                               1× 1×   1×   1× 1× 1×     1× 1× 1× 1×   1× 1× 1× 1×   1× 1× 1× 1× 1×   1×   1×   1×   1×     1× 1× 1× 1×   1× 1× 1× 1×     1×     1×     1×     1×                   1× 4×         4× 4×   4×   4×    </td><td class="text"><pre class="prettyprint lang-js">goog.provide('ol.Graticule');   goog.require('goog.asserts'); goog.require('ol.extent'); goog.require('ol.geom.GeometryLayout'); goog.require('ol.geom.LineString'); goog.require('ol.geom.flat.geodesic'); goog.require('ol.math'); goog.require('ol.proj'); goog.require('ol.render.EventType'); goog.require('ol.style.Stroke');       /** * Render a grid for a coordinate system on a map. * @constructor * @param {olx.GraticuleOptions=} opt_options Options. * @api */ ol.Graticule = function(opt_options) {   var options = opt_options || {};   /** * @type {ol.Map} * @private */ this.map_ = null;   /** * @type {ol.proj.Projection} * @private */ this.projection_ = null;   /** * @type {number} * @private */ this.maxLat_ = Infinity;   /** * @type {number} * @private */ this.maxLon_ = Infinity;   /** * @type {number} * @private */ this.minLat_ = -Infinity;   /** * @type {number} * @private */ this.minLon_ = -Infinity;   /** * @type {number} * @private */ this.maxLatP_ = Infinity;   /** * @type {number} * @private */ this.maxLonP_ = Infinity;   /** * @type {number} * @private */ this.minLatP_ = -Infinity;   /** * @type {number} * @private */ this.minLonP_ = -Infinity;   /** * @type {number} * @private */ this.targetSize_ = options.targetSize !== undefined ? options.targetSize : 100;   /** * @type {number} * @private */ this.maxLines_ = options.maxLines !== undefined ? options.maxLines : 100; goog.asserts.assert(this.maxLines_ > 0, 'this.maxLines_ should be more than 0');   /** * @type {Array.<ol.geom.LineString>} * @private */ this.meridians_ = [];   /** * @type {Array.<ol.geom.LineString>} * @private */ this.parallels_ = [];   /** * @type {ol.style.Stroke} * @private */ this.strokeStyle_ = options.strokeStyle !== undefined ? options.strokeStyle : ol.Graticule.DEFAULT_STROKE_STYLE_;   /** * @type {ol.TransformFunction|undefined} * @private */ this.fromLonLatTransform_ = undefined;   /** * @type {ol.TransformFunction|undefined} * @private */ this.toLonLatTransform_ = undefined;   /** * @type {ol.Coordinate} * @private */ this.projectionCenterLonLat_ = null;   this.setMap(options.map !== undefined ? options.map : null); };     /** * @type {ol.style.Stroke} * @private * @const */ ol.Graticule.DEFAULT_STROKE_STYLE_ = new ol.style.Stroke({ color: 'rgba(0,0,0,0.2)' });     /** * TODO can be configurable * @type {Array.<number>} * @private */ ol.Graticule.intervals_ = [90, 45, 30, 20, 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.01, 0.005, 0.002, 0.001];     /** * @param {number} lon Longitude. * @param {number} minLat Minimal latitude. * @param {number} maxLat Maximal latitude. * @param {number} squaredTolerance Squared tolerance. * @param {ol.Extent} extent Extent. * @param {number} index Index. * @return {number} Index. * @private */ ol.Graticule.prototype.addMeridian_ = function(lon, minLat, maxLat, squaredTolerance, extent, index) { var lineString = this.getMeridian_(lon, minLat, maxLat, squaredTolerance, index); Eif (ol.extent.intersects(lineString.getExtent(), extent)) { this.meridians_[index++] = lineString; } return index; };     /** * @param {number} lat Latitude. * @param {number} minLon Minimal longitude. * @param {number} maxLon Maximal longitude. * @param {number} squaredTolerance Squared tolerance. * @param {ol.Extent} extent Extent. * @param {number} index Index. * @return {number} Index. * @private */ ol.Graticule.prototype.addParallel_ = function(lat, minLon, maxLon, squaredTolerance, extent, index) { var lineString = this.getParallel_(lat, minLon, maxLon, squaredTolerance, index); if (ol.extent.intersects(lineString.getExtent(), extent)) { this.parallels_[index++] = lineString; } return index; };     /** * @param {ol.Extent} extent Extent. * @param {ol.Coordinate} center Center. * @param {number} resolution Resolution. * @param {number} squaredTolerance Squared tolerance. * @private */ ol.Graticule.prototype.createGraticule_ = function(extent, center, resolution, squaredTolerance) {   var interval = this.getInterval_(resolution); Iif (interval == -1) { this.meridians_.length = this.parallels_.length = 0; return; }   var centerLonLat = this.toLonLatTransform_(center); var centerLon = centerLonLat[0]; var centerLat = centerLonLat[1]; var maxLines = this.maxLines_; var cnt, idx, lat, lon;   var validExtent = [ Math.max(extent[0], this.minLonP_), Math.max(extent[1], this.minLatP_), Math.min(extent[2], this.maxLonP_), Math.min(extent[3], this.maxLatP_) ];   validExtent = ol.proj.transformExtent(validExtent, this.projection_, 'EPSG:4326'); var maxLat = validExtent[3]; var maxLon = validExtent[2]; var minLat = validExtent[1]; var minLon = validExtent[0];   // Create meridians   centerLon = Math.floor(centerLon / interval) * interval; lon = ol.math.clamp(centerLon, this.minLon_, this.maxLon_);   idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, 0);   cnt = 0; while (lon != this.minLon_ && cnt++ < maxLines) { lon = Math.max(lon - interval, this.minLon_); idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, idx); }   lon = ol.math.clamp(centerLon, this.minLon_, this.maxLon_);   cnt = 0; while (lon != this.maxLon_ && cnt++ < maxLines) { lon = Math.min(lon + interval, this.maxLon_); idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, idx); }   this.meridians_.length = idx;   // Create parallels   centerLat = Math.floor(centerLat / interval) * interval; lat = ol.math.clamp(centerLat, this.minLat_, this.maxLat_);   idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, 0);   cnt = 0; while (lat != this.minLat_ && cnt++ < maxLines) { lat = Math.max(lat - interval, this.minLat_); idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, idx); }   lat = ol.math.clamp(centerLat, this.minLat_, this.maxLat_);   cnt = 0; while (lat != this.maxLat_ && cnt++ < maxLines) { lat = Math.min(lat + interval, this.maxLat_); idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, idx); }   this.parallels_.length = idx;   };     /** * @param {number} resolution Resolution. * @return {number} The interval in degrees. * @private */ ol.Graticule.prototype.getInterval_ = function(resolution) { var centerLon = this.projectionCenterLonLat_[0]; var centerLat = this.projectionCenterLonLat_[1]; var interval = -1; var i, ii, delta, dist; var target = Math.pow(this.targetSize_ * resolution, 2); /** @type {Array.<number>} **/ var p1 = []; /** @type {Array.<number>} **/ var p2 = []; for (i = 0, ii = ol.Graticule.intervals_.length; i < ii; ++i) { delta = ol.Graticule.intervals_[i] / 2; p1[0] = centerLon - delta; p1[1] = centerLat - delta; p2[0] = centerLon + delta; p2[1] = centerLat + delta; this.fromLonLatTransform_(p1, p1); this.fromLonLatTransform_(p2, p2); dist = Math.pow(p2[0] - p1[0], 2) + Math.pow(p2[1] - p1[1], 2); if (dist <= target) { break; } interval = ol.Graticule.intervals_[i]; } return interval; };     /** * Get the map associated with this graticule. * @return {ol.Map} The map. * @api */ ol.Graticule.prototype.getMap = function() { return this.map_; };     /** * @param {number} lon Longitude. * @param {number} minLat Minimal latitude. * @param {number} maxLat Maximal latitude. * @param {number} squaredTolerance Squared tolerance. * @return {ol.geom.LineString} The meridian line string. * @param {number} index Index. * @private */ ol.Graticule.prototype.getMeridian_ = function(lon, minLat, maxLat, squaredTolerance, index) { goog.asserts.assert(lon >= this.minLon_, 'lon should be larger than or equal to this.minLon_'); goog.asserts.assert(lon <= this.maxLon_, 'lon should be smaller than or equal to this.maxLon_'); var flatCoordinates = ol.geom.flat.geodesic.meridian(lon, minLat, maxLat, this.projection_, squaredTolerance); goog.asserts.assert(flatCoordinates.length > 0, 'flatCoordinates cannot be empty'); var lineString = this.meridians_[index] !== undefined ? this.meridians_[index] : new ol.geom.LineString(null); lineString.setFlatCoordinates(ol.geom.GeometryLayout.XY, flatCoordinates); return lineString; };     /** * Get the list of meridians. Meridians are lines of equal longitude. * @return {Array.<ol.geom.LineString>} The meridians. * @api */ ol.Graticule.prototype.getMeridians = function() { return this.meridians_; };     /** * @param {number} lat Latitude. * @param {number} minLon Minimal longitude. * @param {number} maxLon Maximal longitude. * @param {number} squaredTolerance Squared tolerance. * @return {ol.geom.LineString} The parallel line string. * @param {number} index Index. * @private */ ol.Graticule.prototype.getParallel_ = function(lat, minLon, maxLon, squaredTolerance, index) { goog.asserts.assert(lat >= this.minLat_, 'lat should be larger than or equal to this.minLat_'); goog.asserts.assert(lat <= this.maxLat_, 'lat should be smaller than or equal to this.maxLat_'); var flatCoordinates = ol.geom.flat.geodesic.parallel(lat, this.minLon_, this.maxLon_, this.projection_, squaredTolerance); goog.asserts.assert(flatCoordinates.length > 0, 'flatCoordinates cannot be empty'); var lineString = this.parallels_[index] !== undefined ? this.parallels_[index] : new ol.geom.LineString(null); lineString.setFlatCoordinates(ol.geom.GeometryLayout.XY, flatCoordinates); return lineString; };     /** * Get the list of parallels. Pallels are lines of equal latitude. * @return {Array.<ol.geom.LineString>} The parallels. * @api */ ol.Graticule.prototype.getParallels = function() { return this.parallels_; };     /** * @param {ol.render.Event} e Event. * @private */ ol.Graticule.prototype.handlePostCompose_ = function(e) { var vectorContext = e.vectorContext; var frameState = e.frameState; var extent = frameState.extent; var viewState = frameState.viewState; var center = viewState.center; var projection = viewState.projection; var resolution = viewState.resolution; var pixelRatio = frameState.pixelRatio; var squaredTolerance = resolution * resolution / (4 * pixelRatio * pixelRatio);   var updateProjectionInfo = !this.projection_ || !ol.proj.equivalent(this.projection_, projection);   if (updateProjectionInfo) { this.updateProjectionInfo_(projection); }   //Fix the extent if wrapped. //(note: this is the same extent as vectorContext.extent_) var offsetX = 0; if (projection.canWrapX()) { var projectionExtent = projection.getExtent(); var worldWidth = ol.extent.getWidth(projectionExtent); var x = frameState.focus[0]; if (x < projectionExtent[0] || x > projectionExtent[2]) { var worldsAway = Math.ceil((projectionExtent[0] - x) / worldWidth); offsetX = worldWidth * worldsAway; extent = [ extent[0] + offsetX, extent[1], extent[2] + offsetX, extent[3] ]; } }   this.createGraticule_(extent, center, resolution, squaredTolerance);   // Draw the lines vectorContext.setFillStrokeStyle(null, this.strokeStyle_); var i, l, line; for (i = 0, l = this.meridians_.length; i < l; ++i) { line = this.meridians_[i]; vectorContext.drawLineStringGeometry(line, null); } for (i = 0, l = this.parallels_.length; i < l; ++i) { line = this.parallels_[i]; vectorContext.drawLineStringGeometry(line, null); } };     /** * @param {ol.proj.Projection} projection Projection. * @private */ ol.Graticule.prototype.updateProjectionInfo_ = function(projection) { goog.asserts.assert(projection, 'projection cannot be null');   var epsg4326Projection = ol.proj.get('EPSG:4326');   var extent = projection.getExtent(); var worldExtent = projection.getWorldExtent(); var worldExtentP = ol.proj.transformExtent(worldExtent, epsg4326Projection, projection);   var maxLat = worldExtent[3]; var maxLon = worldExtent[2]; var minLat = worldExtent[1]; var minLon = worldExtent[0];   var maxLatP = worldExtentP[3]; var maxLonP = worldExtentP[2]; var minLatP = worldExtentP[1]; var minLonP = worldExtentP[0];   goog.asserts.assert(extent, 'extent cannot be null'); goog.asserts.assert(maxLat !== undefined, 'maxLat should be defined'); goog.asserts.assert(maxLon !== undefined, 'maxLon should be defined'); goog.asserts.assert(minLat !== undefined, 'minLat should be defined'); goog.asserts.assert(minLon !== undefined, 'minLon should be defined');   goog.asserts.assert(maxLatP !== undefined, 'projected maxLat should be defined'); goog.asserts.assert(maxLonP !== undefined, 'projected maxLon should be defined'); goog.asserts.assert(minLatP !== undefined, 'projected minLat should be defined'); goog.asserts.assert(minLonP !== undefined, 'projected minLon should be defined');   this.maxLat_ = maxLat; this.maxLon_ = maxLon; this.minLat_ = minLat; this.minLon_ = minLon;   this.maxLatP_ = maxLatP; this.maxLonP_ = maxLonP; this.minLatP_ = minLatP; this.minLonP_ = minLonP;     this.fromLonLatTransform_ = ol.proj.getTransform( epsg4326Projection, projection);   this.toLonLatTransform_ = ol.proj.getTransform( projection, epsg4326Projection);   this.projectionCenterLonLat_ = this.toLonLatTransform_( ol.extent.getCenter(extent));   this.projection_ = projection; };     /** * Set the map for this graticule. The graticule will be rendered on the * provided map. * @param {ol.Map} map Map. * @api */ ol.Graticule.prototype.setMap = function(map) { Iif (this.map_) { this.map_.un(ol.render.EventType.POSTCOMPOSE, this.handlePostCompose_, this); this.map_.render(); } Eif (map) { map.on(ol.render.EventType.POSTCOMPOSE, this.handlePostCompose_, this); map.render(); } this.map_ = map; };  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Nov 06 2015 19:36:11 GMT+0100 (CET) </div> </div> <script src="../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../sorter.js"></script> </body> </html>